Cablevision Systems Corporation (NYSE: CVC) filed an antitrust lawsuit today against Viacom (NYSE: VIA), in federal court in Manhattan, for illegally forcing Cablevision to carry and pay for 14 lesser-watched ancillary networks its customers do not want, such as Palladia, MTV Hits and VH1 Classic, in order to carry must-have networks such as Nickelodeon, MTV and Comedy Central.

Commenting on the lawsuit and Viacom, Cablevision offered the following statement:

Cablevision's suit contends that:

Viacom abused its market power over commercially critical networks, including must-have networks such as Nickelodeon, Comedy Central, and MTV, to coerce Cablevision into carrying the 14 far less popular ancillary channels.

Viacom's conduct harms Cablevision and its customers, and impairs competition by making Cablevision pay for and carry networks that many subscribers do not want to watch, while other networks are excluded from distribution, preventing Cablevision from being able to differentiate its services and harming subscribers.

Cablevision's complaint asserts that Viacom engaged in a "per se" illegal tying arrangement in violation of the federal antitrust laws. Cablevision's antitrust lawsuit also asserts that Viacom has engaged in unlawful "block booking," which is a form of tying that conditions the sale of a package of rights on the purchaser's taking of other rights. Viacom's conduct also violates the Donnelly Act in New York State Law, which parallels federal anti-trust laws.

The complaint was filed under seal and a public version is not yet available.

Cablevision is seeking a number of remedies including:

Declaratory relief voiding the December 2012 carriage agreement.

A permanent injunction barring Viacom from conditioning carriage of any or all of its core networks on Cablevision's licensing any or all of Viacom's ancillary networks.

To effectuate the permanent relief, a requirement that Viacom permit Cablevision to carry the core networks and ancillary products on terms pending negotiation of a new, lawful agreement